Chapter Titles:
- 1. Human Targets
- 2. Isle of Missing Men
- 3. Savage Horde
- 4. Mark of the Tiger Shark
- 5. Gauntlet of Grief
- 6. Robber's Roost
- 7. Jungle Terrors
- 8. Siege of Halfway Island
- 9. Death From the Sky
- 10.Wheels of Destruction
- 11.Behind the Mask
- 12.Two Against the Horde
This was the final Mascot Serial. After this was released, Mascot and several other companies merged to form Republic Pictures.